Table. Overall performance of agreement, differences and accuracy between eGFR and sGFR.

	CG equation	MDRD equation	Ruijin equation
Correlation coefficient	0.70	0.70	0.72
Consistency limits	-45.1~65.5	-39.6~72.8	-37.2~50.2
Slope between regression line and x-axis (95% CL)	0.42 (0.32, 0.51)	0.44 (0.34, 0.52)	0.15 (0.06, 0.24)
Intercept between regression line and y-axis (95% CL)	-26.55 (-35.33, −17.76)	-23.24 (-32.25, −14.23)	6.52 (-14.91, 1.87)
Deviation value (25%, 75%)	5.23 (-6.76, 26.15)	14.51 (-3.14, 34.09)	5.84 (-5.83, 20.72)
Deviation measured value% (25%, 75%)	21.87 (8.53, 38.42)	25.76 (10.90, 47.15)	17.42 (16.83, 32.29)
15% coincidence rate	0.377551	0.363946	0.44898
30% coincidence rate	0.64966	0.598639	0.710884
50% coincidence rate	0.823129	0.785714	0.901361

eGFR: estimated glomerular filtration rate; sGFR: standard glomerular filtration rate;

CG: Cockcroft-Gault; MDRD: Modification of Diet in Renal Disease